Two-bolt door-lock.



15'. H. FAY.

TWO BOLT DOOR LOOK.

APPLICATION FILED SEPT. 29. 1904.

2 SHEETS-SHEET 1.

PATENTED NOV. 21, 1905.

No. 804,837. PATENTED NOV. 21, 1905.

P. H. FAY.

TWO BOLT DOOR LOCK.

APPLIOATION FILED SEPT. 29, 1904.

2 SHEETS-SHEET 2.

FRANK H. FAY, OF HOXIE, KANSAS.

TWO-BOLT DOOR-LOCK.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed September 29, 1904. Serial No. 226,540.

1'0 a whom it may concern/.-

Be it known that I, FRANK H. FAY, a citizen of the United States,residing at Hoxie, in the county of Sheridan and State of Kansas, haveinvented certain new and useful Improvements in Two-Bolt Door-Locks, ofwhich the following is a specification.

The primary object of this invention is the provision of a lock of novelconstruction specially designed for doors and which is free of springsand capable of utilizing both the latch and the lock-bolts for securanceof the door, the latch being held by means of a key or like partinserted in the lock and serving in turn to prevent operation of thelock-bolt by the key.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the detailsof construction of the means foreffecting the result reference is to be had to the following descriptionand accompanying drawings.

While the essential and characteristic fea tures of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in which- Figure1 is a front view of a lock embodying the invention, the face-platebeing omitted. Fig. 2 is a View similar to Fig. 1, showing the lock-boltprojected and the key inserted for securing the latch. Fig. 3 is atransverse section of the lock on the line 00 w of Fig. 1. ,Fig. 4 is aperspective view of the pivoted latch-actuator. Fig. 5 is a detailperspective View of the lock-bolt and the tumbler cooperating therewith,the parts being separated. Fig. 6 is a detail perspective view of thelatch. Fig. 7 is a detail perspective view of the knob-operated tumbler.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The invention may be adapted to the different types of locks providedwith knob-operated latches. The casing for inclosing the operating partsis of the accustomed construction, comprising abox 1 and face-plate 2,the latter being secured to the box portion by any suitable fasteningmeans. The latch-bolt is gravity-actuated and comprises the latch 3 andpivoted latch-actuator 4. The pivoted latchactuator comprises thehorizontal weight-bar 5, upright 6, horizontal arm 7 and vertical arm 8.The portion of the upright 6 adjacent to the weight-bar 5 is reducedupon opposite sides to receive the spaced members of the latch. whichare pivoted thereto by means of the pin 9. The latch-actuator is pivotedat its upper forward corner to the casing, as indicated at 10, therebythrowing the preponderance of weight in the rear of the upright 6, withthe result that the latch 3 is normally projected. When the latch isrepressed or moved inward to permit opening or closing of the door, itsactuator turns upon the pivotsupport 10, the weight-bar 5 moving inwardand upward,as will be readily understood. The knob-operated tumbler 11has one arm 12 arranged in the path of the horizontal arm 7 and itsother arm 13 overlapping the arm 8 and adapted to engage with a shoulder14, formed near the upper end of said arm. The arm 13 has a pendentportion from which projects a stud 15, so as to engage with the inneredge of the vertical arm 8 and move the latch-actuator when the tumbleris turned in one direction, the arm 12 serving a similar purpose byengagement with the horizontal arm 7 when the tumbler is turned in theopposite direction. The latch 3 is reversible to admit of the lock beingused upon either a right-hand or a lefthand door. This is effected byremoving the pin 9 and turning the latch and replacing the pin.

The lock-bolt 16 has a longitudinal slot 17, through which is passed apin or stud 18, forming a part of or applied to the casing. The tumbler19, cooperating with the lockbolt, is pivotally mounted upon the pin orstud 18 and is weighted at 20. An extension 21 projects laterally fromthe tumbler, so as to overlap the inner portion of the lock-bolt andengage upon either side of a stop 22 thereof, so as to hold thelock-bolt either projected or withdrawn. When operating the lock-bolt bymeans of the key, the tumbler is lifted to move the extension 21 out ofthe path of the stop 22, thereby admitting of a free sliding movement ofthe lock-bolt when shot either inward or outward. As the lock-boltreaches the limit of its movement in either direction the weighted endof the tumbler 19 descends and causes the extension 21 to engage withthe stop 22, thereby fixing the position of the lockbolt in the mannerwell understood.

The lock-casing is provided with a keyhole 23 adjacent to the inner endof the weight-bar 5 of the pivoted latch-actuator, so that upon theintroduction of a key 24 into said keyhole the latch-actuator isprevented from opmay be arranged in any position to admit of the key 24or like part obstructing the movement of the latch-actuator,- wherebythe latter may be utilized at will in the capacity of a lock-bolt.

It is proposed to utilize the latch-actuator as lock means for thetumbler, thereby preventing opening of the look at stated times. Forthis purpose the latch-actuator is pro vided with an extension 25,projected so as to extend into the path of the tumbler to prevent itsoperation without moving the latchactuator. As indicated, the extensionprojects into the path of the lateral extension 21 of the tumbler. Whenthe tumbler is lifted by means of the key in the well-known man ner, thelatch -actuator is correspondingly moved. Obviously when the key or likepart 24: is in position to prevent movement of the latch -actuator thetumbler 19 cannot be moved. It therefore follows that the part 24secures both the latch and the lock-bolt against movement whenintroduced into the lockcasing.

A pin 26 projects from the lock-case and forms a stop to limit theupward movement of the tumbler and prevent opening of the look by meansof a key having the slot in its Web or bit too shallow.

Having thus described the invention, what is claimed as new is- 1. In alock, the combination of a latch-actuator comprising a horizontal weightmember, an upright at one end of said weight member having opposite sideportions reduced, a vertical arm at the opposite end of the weightmember formed With a lateral shoulder, a horizontal arm extended fromthe upper portion of said upright, a latch comprising spaced portionsembracing a reduced part of the aforesaid upright and pivotallyconnected thereto and adapted to be reversed, means for pivotallysupporting the latch-actuator approximately at the angle formed betweenthe upright and horizontal arm, and a knob-operated tumbler havingopposite arms arranged to cooperate with corresponding arms of thelatch-actuator, and one of said arms having a lateral stud to engagewith the aforesaid vertical arm, substantially as described.

2. In a lock, the combination of a pivoted latch-bolt having anextension, a lock-bolt provided with a stop, a tumbler having anextension cooperating with the stop of the lockbolt and with theextension of the latch-bolt for operating the latter at each actuationof said tumbler and lock bolt, and a key for securing the latch-bolt bydirect contact therewith and at the same time preventing movement of thelock-bolt and its tumbler, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

FRANK H. FAY. [L. s.]

Witnesses:

L. G. TAYLOR, O. L. POSTLETHWAITE.

